<template>
  <div>
    <el-form
      ref="loginForm"
      :rules="rules"
      :model="form"
      label-width="80px"
      class="login-box"
      autocomplete="off"
    >
      <h3>欢迎登录</h3>
      <el-form-item label="账号" prop="username">
        <el-input
          type="text"
          placeholder="请输入账号"
          v-model="form.username"
        ></el-input>
      </el-form-item>
      <el-form-item label="密码" prop="password">
        <el-input
          type="password"
          placeholder="请输入密码"
          v-model="form.password"
        ></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" v-on:click="onSubmit('loginForm')"
          >登录</el-button
        >
      </el-form-item>
    </el-form>
    <el-dialog
      title="温馨提示"
      :visible.sync="dialogVisible"
      width="30%"
      :before-close="handleClose"
    >
      <span>请输入账号和密码</span>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogVisible = false"
          >确 定</el-button
        >
      </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
  name: "Login",
  data() {
    return {
      form: {
        username: "",
        password: "",
      },
      rules: {
        username: [
          { required: true, message: "账号不可为空", trigger: "blur" },
        ],
        password: [
          { required: true, message: "密码不可为空", trigger: "blur" },
        ],
      },
      // 对话框显示和隐藏
      dialogVisible: false,
    };
  },
  methods: {
    onSubmit(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          sessionStorage.setItem("isLogin", "true");
          this.$router.push("/main");
          this.$store.dispatch("asyncUpdateUser", {
            username: this.form.username,
          });
        } else {
          this.dialogVisible = true;
          return false;
        }
      });
    },
    handleClose() {},
  },
};
</script>

<style  scoped>
.login-box {
  border: 1px solid #dcdfe6;
  width: 350px;
  margin: 180px auto;
  padding: 35px 35px 15px 35px;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  box-shadow: 0 0 25px #909399;
}

.login-title {
  text-align: center;
  margin: 0 auto 40px auto;
  color: #303133;
}
</style>'
